EP 0993497 A1 20000419 - PYROLYSIS FURNACE WITH AN INTERNALLY FINNED U-SHAPED RADIANT COIL
Title (en)
PYROLYSIS FURNACE WITH AN INTERNALLY FINNED U-SHAPED RADIANT COIL
Title (de)
PYROLYSE-OFEN MIT INTERNER U-FÖRMIGER GERIPPTER STRAHLENDER SPULE
Title (fr)
FOUR DE PYROLYSE EQUIPE D'UN SERPENTIN RAYONNANT EN U A AILETTES INTERNES
Publication
Application
Priority
- US 9811902 W 19980609
- US 4952997 P 19970610
Abstract (en)
[origin: WO9856872A1] The present invention is directed towards a fired heater for heating a process fluid that uses U tubes provided with increased internal heat transfer surface to reduce tube metal temperatures and coking, and at the same time is not prone to plugging from coke. The fired heater comprises a radiant section enclosure with a number of U tubes in the radiant section. The U tubes are formed by connecting one or more tubular sections, and the U tubes are provided with internal generally longitudinal fins. The invention also is directed towards a process utilizing a fined heater with U tubes as disclosed for producing olefins from hydrocarbon feedstocks.
IPC 1-7
IPC 8 full level
C10G 9/20 (2006.01); F28D 7/06 (2006.01); F28F 1/40 (2006.01)
CPC (source: EP KR US)
B01J 8/062 (2013.01 - EP US); C10G 9/20 (2013.01 - EP KR US); F28D 7/06 (2013.01 - EP US); F28F 1/40 (2013.01 - EP US); F28D 2021/0059 (2013.01 - EP US)
Citation (search report)
See references of WO 9856872A1
Designated contracting state (EPC)
AT BE CH CY DE ES FI FR GB GR IE IT LI NL PT SE
DOCDB simple family (publication)
WO 9856872 A1 19981217; AR 015388 A1 20010502; AT E208417 T1 20011115; AT E272697 T1 20040815; AU 737015 B2 20010809; AU 7829698 A 19981230; BR 9811468 A 20000919; CA 2290540 A1 19981217; CA 2290540 C 20071009; CN 1195823 C 20050406; CN 1259981 A 20000712; DE 69802404 D1 20011213; DE 69802404 T2 20020718; DE 69825494 D1 20040909; DE 69825494 T2 20050728; EP 0993497 A1 20000419; EP 0993497 B1 20011107; EP 1136541 A1 20010926; EP 1136541 B1 20040804; ES 2225400 T3 20050316; HU P0003033 A2 20010628; ID 24474 A 20000720; JP 2002504170 A 20020205; JP 4819205 B2 20111124; KR 100525879 B1 20051102; KR 20010013526 A 20010226; MY 122107 A 20060331; NO 327767 B1 20090921; NO 996083 D0 19991209; NO 996083 L 20000208; PL 337179 A1 20000814; PT 1136541 E 20041231; RU 2211854 C2 20030910; SA 98190543 B1 20060625; TW 387933 B 20000421; US 2002034463 A1 20020321; US 2002159934 A1 20021031; US 6419885 B1 20020716; US 6719953 B2 20040413; ZA 985021 B 19990125
DOCDB simple family (application)
US 9811902 W 19980609; AR P980102755 A 19980610; AT 01201443 T 19980609; AT 98926463 T 19980609; AU 7829698 A 19980609; BR 9811468 A 19980609; CA 2290540 A 19980609; CN 98806016 A 19980609; DE 69802404 T 19980609; DE 69825494 T 19980609; EP 01201443 A 19980609; EP 98926463 A 19980609; ES 01201443 T 19980609; HU P0003033 A 19980609; ID 991553 A 19980609; JP 50307899 A 19980609; KR 19997011533 A 19991207; MY PI9802592 A 19980610; NO 996083 A 19991209; PL 33717998 A 19980609; PT 01201443 T 19980609; RU 2000100273 A 19980609; SA 98190543 A 19980914; TW 87109252 A 19980820; US 13563402 A 20020430; US 9440798 A 19980609; ZA 985021 A 19980610